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A "SOUND" PARTNERSHIP REACHES A MILESTONE

The AeroAcoustic Research Consortium (AARC) will conduct its first annual Year End Review on November 29 at OAI, 22800 Cedar Point Road, Cleveland, which is adjacent to Glenn's Research Center. The Review will focus on noise measurement methods, improvements in analysis and noise prediction, as well as further development of noise source definition and prediction in aircraft engines.

Formally founded in 2000, AARC was formed to facilitate collaboration among various entities interested in reducing airplane engine noise. Specifically, AARC seeks to support fundamental research that will help reduce perceived noise levels of future aircraft by 20 decibels by the year 2022. To meet this challenge, researchers and manufacturers will need to overcome many obstacles, which are best addressed by collaboration among those who have done work toward this goal.

"It is hoped that work done within AARC will help meet NASA's goal of eliminating community noise problems near airports," said Glenn's Center Director Donald Campbell. "The goal is to enable a propulsion system with noise levels compatible with public acceptance."

Eight researchers currently funded by AARC will present a summary of their work that has already begun to address noise reduction in the fundamental areas of jet noise source definition and prediction, computational aeroacoustics, and fan broadband noise. In addition, the researchers will participate in a discussion during the Review.

"The AARC Review will be an opportunity for all the researchers and members of participating companies to come together to discuss progress from research that will help us better understand aircraft engine noise," according to Dennis Huff, chief, Acoustics Branch at Glenn.

AARC was established by Glenn in partnership with GE Aircraft Engines, Pratt & Whitney, Boeing, Honeywell and Rolls-Royce and is administered by OAI. Its mission is to promote world-class aeroacoustics research while providing a stimulating environment that fosters meaningful interaction with the acoustic research workforce at Glenn and industry

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